On enthusiasm follows slight disenchantment

I bought the Network Kit upgrade than the 200 version. Both the additional port connector, and the third adapters were doing a selling point. The performance increase to 200 variant has also convinced me. Actually a 5 - star product.
Why do I have forgiven only 3?
Unfortunately, it happens more frequently disconnects lately. Meanwhile, I, according to the Win network icon still Internet. But I can not call a page. Even then the intranet is nothing more. After 2-3 minutes everything is working again, as if nothing had happened. As Netflix and Amazon "showers" can be quite annoying that fact. Has the configuration to my knowledge, in relation to the beginning changed nothing. The Cockpit software shows me Unfortunately, even after a new installation, no DLan equipment more ...